Science
Strand IV
Use Scientific Knowledge from the Physical Sciences in Real-World Contexts

 

Science/Strand IV
Content Standard 3
All students will describe how things around us move and explain why things move as they do; demonstrate and explain how we control the motions of objects; and relate motion to energy and energy conversions. (Motion of Objects)

 

Science/Strand IV/Content Standard 3
Elementary

 

Science/Strand IV/Content Standard 3/Elementary
Benchmark 1
Describe or compare motions of common objects in terms of speed and direction.

Benchmark Clarification

The motions of common objects can be described in terms of speed and direction.

Students will:

  • Describe the motion of an object in terms of speed (fast, slow, speeding up, slowing down)
  • Describe the motion of an object in terms of direction (right, left, east, west, north, south, up, down)
  • Compare the motions of two objects in terms of speed and direction

Key Concept / Real World Context / Instructional Example / Assessment Example / Resources

 

Science/Strand IV/Content Standard 3/Elementary/Benchmark 1
Key Concept
Words:

  • east
  • west
  • north
  • south
  • right
  • left
  • up
  • down

Speed words:

  • fast
  • slow
  • faster
  • slower

 

Science/Strand IV/Content Standard 3/Elementary/Benchmark 1
Real World Context
Motions of familiar objects in two dimensions:

  • rolling or thrown balls
  • wheeled vehicles
  • sliding objects

 

Science/Strand IV/Content Standard 3/Elementary/Benchmark 1
Instructional Example

Benchmark Question: How do speed and direction affect the motion of objects?

Focus Question: How do you describe the movement of an object?

The teacher will ask students how they determine direction and how they orient themselves in order to tell what direction they are facing. With help from the students, the teacher will label the classroom with direction signs (N, S, E, W). The teacher will stand facing the same direction as the students.

The class will observe the flight of a paper airplane and will discuss the airplaneÕs motion in terms of speed and direction. The teacher will list on the board the words that students choose to describe speed and motion. The class will evaluate the words and determine which ones are the most accurate. In pairs, students will select words from a hat, act out the movement of an object, and demonstrate the selected speed and direction words.

Direction words:

  • north
  • south
  • east
  • west
  • left
  • right

Speed words:

  • fast
  • slow
  • faster
  • slower

Extension: Students could describe real-world activities such as a ride on their favorite bike or skateboard.

Constructing: (SCI.I.1E.1), (SCI.I.1.E.3).

Reflecting: (SCI.II.1E.2).

 

Science/Strand IV/Content Standard 3/Elementary/Benchmark 1
Assessment Example

Students will describe the motion of a ball that has been kicked, rolled, and thrown in terms of speed, direction, and change of direction using precise description. Each student will draw a picture of the motion with labels or arrows to show the descriptions. Vocabulary should include the following: fast, faster, slow, slower, left, right, up, down, north, south, east, and west. Students will compare their pictures in small groups and discuss differences they observe.

Each student will choose two pictures of the same motion that show different labels and arrows. Then the student will write a paragraph explaining the differences and identifying which description is the most accurate.

(Give students rubric before activity.)

Scoring Rubric

Criteria

Apprentice

Basic

Meets

Exceeds

Completeness of picture

Creates incomplete pictures; missing many labels and arrows showing speed and direction.

Creates incomplete pictures; missing some labels and arrows showing speed and direction.

Creates incomplete pictures; missing a few labels and arrowsshowing speed and direction.

Completes pictures; missing no labels or arrows showing speed and direction.

Accuracy of evaluation

Evaluates pictures of motion using either direction or speed vocabulary.

Evaluates pictures of motion using both direction and speed vocabulary, but uses few accurate details in describing differences.

Evaluates pictures of motion using both directional and speed vocabulary, and uses some accurate details in describing differences.

Evaluates pictures of motion using both directional and speed vocabulary, and uses many accurate details in describing the differences.

 

Science/Strand IV/Content Standard 3/Elementary/Benchmark 1
Resources

Webliography.
http://mtn.merit.edu/mcf/SCI.IV.3.E.1.html

Hewitt, Sally. Forces Around Us. ChildrenÕs Press, 1998.

Wells, Robert. WhatÕs Faster Than a Speeding Cheetah? Whitman, 1997.